Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. There are two types: Riddler Express for those of you who want ...
Last week in Singapore, Filipino students from public and private elementary and secondary schools in the Philippines beat China and Taiwan in the 2015 Singapore International Math Competition.
In Disney’s 1959 film Donald in Mathmagic Land, Donald Duck, inspired by the narrator’s descriptions of the geometry of billiards, energetically strikes the cue ball, sending it ricocheting around the ...
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